JPH02115390A - Plated synthetic resin member and its plating method - Google Patents
Plated synthetic resin member and its plating methodInfo
- Publication number
- JPH02115390A JPH02115390A JP63266120A JP26612088A JPH02115390A JP H02115390 A JPH02115390 A JP H02115390A JP 63266120 A JP63266120 A JP 63266120A JP 26612088 A JP26612088 A JP 26612088A JP H02115390 A JPH02115390 A JP H02115390A
- Authority
- JP
- Japan
- Prior art keywords
- plating layer
- synthetic resin
- molded product
- plating
- copper plating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007747 plating Methods 0.000 title claims abstract description 123
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 20
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 61
- 229910052802 copper Inorganic materials 0.000 claims description 34
- 239000010949 copper Substances 0.000 claims description 34
- 229910052759 nickel Inorganic materials 0.000 claims description 33
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 29
- 150000001879 copper Chemical class 0.000 claims description 5
- 150000002815 nickel Chemical class 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 22
- 239000002184 metal Substances 0.000 abstract description 22
- 229910052737 gold Inorganic materials 0.000 abstract description 10
- 238000004381 surface treatment Methods 0.000 abstract description 5
- 229910052804 chromium Inorganic materials 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract 1
- 238000005498 polishing Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 24
- 239000010931 gold Substances 0.000 description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 4
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- -1 hair lines Chemical class 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000010582 Pisum sativum Nutrition 0.000 description 1
- 240000004713 Pisum sativum Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- PWGQHOJABIQOOS-UHFFFAOYSA-N copper;dioxido(dioxo)chromium Chemical compound [Cu+2].[O-][Cr]([O-])(=O)=O PWGQHOJABIQOOS-UHFFFAOYSA-N 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
- C25D5/611—Smooth layers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の技術分野］
この発明はメッキ付き合成樹脂部材およびそのメッキ方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a plated synthetic resin member and a method for plating the same.
［従来技術とその問題点］
近年、時計の分野においては、腕時計ケースを合成樹脂
で成形し、その表面に金属メッキを施すことにより、金
属ケースとしての感覚をだすことが要望されている。こ
のような要望に応えて、従来では、金属メッキを次のよ
うに施している。すなわち、合成樹脂製の成形品を下地
処理し、その表面に下地メッキ（銅メッキおよびニッケ
ルメッキを順に積層したもの）を施したうえで、この下
地メッキの表面に銀色をだすクロムメッキか、あるいは
金色をだす金メッキを施している。しかし、このように
して形成された金属メッキは表面に光沢があるが、打痕
や傷等が目立ち易いという問題がある。[Prior art and its problems] In recent years, in the field of watches, there has been a demand for wristwatch cases to be molded from synthetic resin and plated with metal on the surface to give the watch the feel of a metal case. In response to such demands, metal plating has conventionally been applied as follows. In other words, a molded product made of synthetic resin is prepared, a base plating (copper plating and nickel plating are laminated in order) is applied to the surface of the molded product, and then chrome plating is applied to give a silver color to the surface of this base plating, or It is plated with gold to give it a golden color. However, although the metal plating thus formed has a glossy surface, there is a problem in that dents, scratches, etc. are easily noticeable.
そこで、最近では、下地メッキの表面に光沢のないベロ
アクロムメッキやベロア金メッキを施すことが考えられ
ているが、このような金属メッキは光沢のないつやけし
タイプであるため、打痕や傷等は目立ちにくいが、ヘア
ーライン等のような金属特有の表面処理による外観は得
られず、金属ケースとしての感覚に劣るという問題があ
る。Therefore, recently it has been considered to apply matte velor chrome plating or velor gold plating to the surface of the base plating, but since such metal plating is a matte type with no luster, it is prone to dents and scratches. etc. are not noticeable, but there is a problem that the appearance due to surface treatment peculiar to metals such as hair lines etc. cannot be obtained, and the feeling of a metal case is inferior.
［発明の目的］
この発明は上述した事情に鑑みてなされたもので、その
目的とするところは、ヘアーライン等の金゛属特有の表
面処理と同程度の外観を得ることができ、金属感を充分
にだすことができ、デザイン的に優れたメッキ付き合成
樹脂部材およびそのメッキ方法を提供することにある。[Object of the invention] This invention was made in view of the above-mentioned circumstances, and its purpose is to be able to obtain an appearance comparable to the surface treatment peculiar to metals such as hair lines, and to create a metallic appearance. To provide a plated synthetic resin member which can be sufficiently exposed and has an excellent design, and a method for plating the same.
［発明の要点］
この発明は上述した目的を達成するために１合成樹脂製
の成形品に銅メッキ層を形成し、この銅メッキ層の表面
に微細な凹凸を形成し、この凹凸が形成された銅メッキ
層の表面にニッケルメッキ層を介して装飾メッキ層を積
層形成することを要点とする。[Summary of the Invention] In order to achieve the above-mentioned object, the present invention forms a copper plating layer on a molded product made of synthetic resin, forms minute irregularities on the surface of this copper plating layer, and forms the irregularities. The key point is to form a decorative plating layer on the surface of the copper plating layer with a nickel plating layer interposed therebetween.
［実施例］
以下、第１図〜第４図を参照して、この発明を腕時計に
適用した場合の第１実施例について説明する。[Embodiment] Hereinafter, a first embodiment in which the present invention is applied to a wristwatch will be described with reference to FIGS. 1 to 4.
第１図は腕時計の外観図、第２図はその要部の拡大断面
図である。この腕時計は腕時計ケースｌの上部に時計ガ
ラス２がパツキン２ａを介して装着され、内部に時計モ
ジュール３が収納され、下部に裏蓋４が取り付けられ、
腕時計ケースｌの前後部には時計バンド５．５が取り付
けられ、側面にはリューズ６が設けられている。FIG. 1 is an external view of the wristwatch, and FIG. 2 is an enlarged sectional view of its main parts. In this wristwatch, a watch glass 2 is attached to the upper part of the watch case l via a gasket 2a, a watch module 3 is housed inside, and a back cover 4 is attached to the lower part.
A watch band 5.5 is attached to the front and rear of the watch case l, and a crown 6 is provided on the side.
腕時計ケース１はＡＢＳ樹脂等の合成樹脂製の成形品７
の表面に金属メッキ層８を形成したものであり、全体が
ほぼリング状をなし、その内部にガラス装着部１ａ、モ
ジュール収納部１ｂ、蓋取付部ＩＣが形成されており、
外部における上部にはベゼル部１ｄが設けられ、下部に
は蓋取付用の突出部１ｅが設けられ１前後部にはバンド
取付部ｌｆ、１ｆが設けられている。この場合、合成樹
脂製の成形品７は内面が鏡面仕上された金型で射出成形
されるので、成形後の表面は鏡面仕上された状態と同じ
になる。また、その表面に形成される金属メッキ層８は
、第２図（Ｂ）（Ｃ）に示すように、成形品７の表面に
銅メッキ層９を形成し、この銅メッキ層９の表面の一部
つまりベゼル部１ｄと突出部１ｅを除く外側面にホーニ
ング加工により微細な凹凸９ａ・・・を形成し、この微
細な凹凸９ａ・・・が形成された銅メッキ層９の全表面
にニッケルメッキ層１０および装飾メッキ層１１を順次
ｍＢ影形成た構成となっている。なお、バンド取付部１
ｆ、１ｆに取り付けられる時計バンド５．５の表面には
、ヘアーライン加工により微細な縦縞の線模様が形成さ
れている。The watch case 1 is a molded product 7 made of synthetic resin such as ABS resin.
A metal plating layer 8 is formed on the surface of the ring, and the whole is approximately ring-shaped, and a glass mounting part 1a, a module storage part 1b, and a lid mounting part IC are formed inside the ring.
A bezel part 1d is provided at the upper part of the outside, a protruding part 1e for attaching a lid is provided at the lower part, and band attaching parts 1f and 1f are provided at the front and rear parts of the device. In this case, the molded article 7 made of synthetic resin is injection-molded using a mold whose inner surface is mirror-finished, so that the surface after molding is the same as a mirror-finished state. In addition, the metal plating layer 8 formed on the surface of the molded product 7 includes a copper plating layer 9 formed on the surface of the molded product 7, as shown in FIGS. 2(B) and 2(C). A portion of the outer surface excluding the bezel portion 1d and the protruding portion 1e is formed with fine irregularities 9a by honing, and the entire surface of the copper plating layer 9 on which the fine irregularities 9a are formed is nickel-plated. The plating layer 10 and the decorative plating layer 11 are sequentially formed with mB shadows. In addition, the band attachment part 1
A fine vertical striped line pattern is formed on the surface of the watch band 5.5 attached to f and 1f by hairline processing.
次に、上述した成形品７の表面に金属メッキ層８を形成
する場合について、第３図および第４図を参照して説明
する。Next, the case of forming the metal plating layer 8 on the surface of the molded product 7 described above will be explained with reference to FIGS. 3 and 4.
成形品７は射出成形されると、その表面が鏡面仕上と同
じ状態となる。この成形品７を脱脂処理によるアルカリ
溶液で、その表面から油、しみ、汚れ等を除去する０次
いで、エツチング処理により成形品７の表面を粗面化し
、かつ水にぬれ易い親水性にするとともに、極性化を図
って表面を活性化する。この後、成形品７の表面奄洗浄
し、その表面にキャタリスト処理により触媒金属を吸着
させ、再び表面を洗浄した後、アクセレータ処理により
触媒金属を析出させて活性化を図る。そして１表面を再
度洗浄すると、成形品７の表面にメッキが付き易くなる
。これにより、下地処理が完了する。When the molded product 7 is injection molded, its surface becomes mirror-finished. This molded product 7 is degreased with an alkaline solution to remove oil, stains, dirt, etc. from its surface.Next, the surface of the molded product 7 is roughened by an etching treatment and made hydrophilic so that it is easily wetted with water. , to polarize and activate the surface. Thereafter, the surface of the molded article 7 is washed, the catalyst metal is adsorbed on the surface by catalyst treatment, the surface is washed again, and the catalyst metal is precipitated by accelerator treatment for activation. Then, when one surface is washed again, the surface of the molded product 7 becomes more likely to be plated. This completes the base treatment.
この後、化学ニッケルメッキ処理（無電解メッキ）によ
り成形品７の表面、すなわちアクセレータ処理により表
面に析出された触媒金属にニック・ルメッキを施す、こ
のニッケルメッキは厚さが薄くて電流が流れにくいため
、洗浄後、ニッケルメッキの表面にストライクニッケル
メッキ処理（電気メッキ）により再度ニッケルメッキを
施す。After this, chemical nickel plating (electroless plating) is applied to the surface of the molded product 7, that is, the catalyst metal deposited on the surface by the accelerator treatment.This nickel plating is thin and does not allow current to flow easily. Therefore, after cleaning, the nickel-plated surface is re-plated with nickel using strike nickel plating (electroplating).
次いで、ニッケルメッキの表面に銅メッキ処理（電気メ
ッキ）により第４図（Ａ）に示すように銅メッキ層９を
厚さ約１８μｍ程度に形成し、この銅メッキ層９で緩衝
性をもたせるとともに１表面の平滑化を図る。この後、
第４図（Ｂ）に示すように、銅メッキＲ９の表面の一部
、つまり成形品７の上部のベゼル部１ｄと下部の突出ｆ
ｉｌｅとに対応する銅メッキ層９に電鋳法により作った
マスク１３．１３を設けて、その部分の銅メッキ層９を
覆う、この場合、上部のベゼル部１ｄを覆うマスク１３
は、成形品７の外側面との境界部分に設けられた垂直な
ストレート部Ｓにマスク１３の先端の境界が位置し、こ
れにより境目が目立たないようになっている。この後、
マスク１３．１３で覆われていない成形品７の外側面と
対応する銅メッキ層９の表面をホーニング加工し、その
表面に第４図（Ｃ）に示すような微細な凹凸９ａ・・・
を形成する。この場合、ホーニング加工に用いるホーニ
ング粒子は、アルミニウムの微粒子を用いると、その微
粒子が最終固定まで残り、製品完成後に錆の発生が考え
られるため、ガラスピーズ等の錆の発生が起きにくい微
粒子を用いる。Next, a copper plating layer 9 is formed on the surface of the nickel plating by copper plating treatment (electroplating) to a thickness of about 18 μm as shown in FIG. 1. Smooth the surface. After this,
As shown in FIG. 4(B), part of the surface of the copper plating R9, that is, the upper bezel portion 1d and the lower protrusion f of the molded product 7.
A mask 13.13 made by electroforming is provided on the copper plating layer 9 corresponding to ile to cover that portion of the copper plating layer 9. In this case, the mask 13 covers the upper bezel portion 1d.
In this case, the boundary of the tip of the mask 13 is located at the vertical straight part S provided at the boundary with the outer surface of the molded product 7, so that the boundary is not noticeable. After this,
The surface of the copper plating layer 9 corresponding to the outer surface of the molded product 7 that is not covered with the mask 13.13 is honed, and the surface is formed with fine irregularities 9a as shown in FIG. 4(C).
form. In this case, if fine aluminum particles are used for the honing process, the fine particles will remain until the final fixation, and rust may occur after the product is completed, so use fine particles such as glass peas that are less likely to cause rust. .
次いで、マスク１３．１３を除去した後、第４図（Ｄ）
に示すように、銅メッキ層９の全表面にニッケルメッキ
処理により厚さが８．ｇｍ程度のニッケルメッキ層ｌＯ
を形成する。このニッケルメッキ処理は半光沢メッキ処
理をした後、光沢メッキ処理を行なうことにより、ニッ
ケルメッキ層１０を形成する。すなわち、半光沢メッキ
処理により銅メッキ層９の全表面にニッケルメッキを施
して銅メッキ層９を保護して耐食性を図るのであるが、
表面が平滑にならず、半光沢となる。そのため、光沢メ
ッキ処理により半光沢のニッケルメッキの表面に再度ニ
ッケルメッキを施して表面を平滑化する。これにより、
ホーニング加工が施されていないベゼル部１ｄや突出部
１ｅ等の部分と対応する箇所のニッケルメッキ層１０は
光沢面となるが、ホーニング加工が施された部分と対応
する箇所のニッケルメッキ層１０は微細な凹凸９ａ・・
・により光沢面にはならない。Then, after removing the mask 13.13, FIG.
As shown in the figure, the entire surface of the copper plating layer 9 is nickel plated to a thickness of 8. Nickel plating layer lO of gm
form. In this nickel plating process, the nickel plating layer 10 is formed by performing a semi-bright plating process and then a bright plating process. That is, nickel plating is applied to the entire surface of the copper plating layer 9 by semi-bright plating to protect the copper plating layer 9 and improve its corrosion resistance.
The surface is not smooth and has a semi-gloss finish. Therefore, the surface of the semi-bright nickel plating is re-plated with nickel to make the surface smooth. This results in
The nickel plating layer 10 in the parts corresponding to the bezel part 1d and the protrusion part 1e that are not honed has a shiny surface, but the nickel plating layer 10 in the parts corresponding to the honed part has a shiny surface. Fine unevenness 9a...
・Does not result in a glossy surface.
そして、このニッケルメッキ層ｌＯの全表面にクロムメ
ッキ処理または金メッキ処理により装飾メッキ層ｔｉを
第４図（Ｅ）に示すように形成する。すなわち、クロム
メッキ処理は腕時計ケース１全体を銀色にするための処
理であり、ニッケルメッキ層ｌＯの全表面に厚さが０．
２５ｐｍ程度のクロムメッキＭＣｆｌｊメッキ層１１）
を形成する。このクロムメッキ層はホーニング加工によ
るニッケルメッキ層１０のピンホール（図示せず）を被
うため、耐食性に関して問題はない、金メッキ処理は腕
時計ケースｌ全体を金色にするための処理であり、ニッ
ケルメッキ層１０の全表面に厚さ０．４１Ｌｍ程度の金
メッキ層（装飾メッキ層１１）を形成する。この金メッ
キ層はホーニング加工によるニッケルメッキ層ｌＯのピ
ンホールを被いきれず、耐食性に劣るため、さらに金メ
ッキ層の表面にクロメート処理により被膜を形成する。Then, a decorative plating layer ti is formed on the entire surface of this nickel plating layer lO by chromium plating or gold plating, as shown in FIG. 4(E). That is, the chromium plating process is a process to make the entire watch case 1 silvery, and the entire surface of the nickel plating layer 10 is coated with a thickness of 0.5 mm.
Chrome plating MCflj plating layer 11) of about 25 pm
form. This chrome plating layer covers the pinholes (not shown) in the nickel plating layer 10 caused by honing, so there is no problem with corrosion resistance. A gold plating layer (decorative plating layer 11) with a thickness of about 0.41 Lm is formed on the entire surface of the layer 10. Since this gold plating layer cannot cover the pinholes in the nickel plating layer 10 formed by honing and has poor corrosion resistance, a film is further formed on the surface of the gold plating layer by chromate treatment.
このクロメート処理は化学メー７キの一種で、クロム酸
塩の溶液に漬けて、この溶液を金メッキ層の表面のピン
ホールに浸透させることにより、ピンホールにクロム酸
銅の被膜を形成し、金メッキ層の耐食性を確保する。This chromate treatment is a type of chemical coating, in which the pinholes on the surface of the gold plating layer are soaked in a chromate solution and this solution permeates into the pinholes on the surface of the gold plating layer, forming a coating of copper chromate on the pinholes. Ensure the corrosion resistance of the layer.
したがって、このような腕時計ケースｌによれば１合成
樹脂製の成形品７の表面に銅メッキ層９を形成し、この
銅メッキ層９の一部にホーニング加工により微細な凹凸
を形成し、この銅メッキ層９の表面にニッケルメッキ層
１０を形成し、このニッケルメッキ層１０の表面にクロ
ムメッキ層または金メッキ層の装飾メッキ層１１を形成
したので、ホーニング加工が施された箇所は、金属ケー
スにホーニング加工を施したのと同じ程度の表面仕上と
なり、極めて金属感の高いものが得られる。そのため、
この腕時計ケース１にヘアーライン加工が施された時計
バンド５，５を取り付けても、腕時計ケースｌと時計バ
ンド５，５とが違和感なくマツチし、高級感の高いもの
を得ることができる。しかも、ホーニング加工が施され
た箇所は、光沢のないつやけし状態となるので、打痕や
傷等が目立たない、また、ホーニング加工はニッケルメ
ッキ処理の前工程において、銅メッキ層９に施されてい
るので、ホーニング加工後の銅メッキ層９をニッケルメ
ッキ層１０で保護することができる。そのため、ホーニ
ング加工によって微細な凹凸９ａ・・・が形成された銅
メッキ層９の腐食を防ぐことができ、耐食性および耐久
性を確保することができる。さらに、ホーニング加工は
部分的に行なわれるため、ホーニング加工を行なわない
ベゼル部１ｄおよび突出部１ｅ等の箇所に設けられるマ
スク１３．１３のうち、特に、腕時計の正面側に位置す
るベゼル部１ａを覆うマスク１３０は、その先端の境界
部が成形品７に形成された垂直なストレート部Ｓに位置
しているので、ホーニング加工が施される部分とそうで
ない部分との境目が目立たず、外観を良くすることがで
きる。また、この腕時計ケースｌはホーニング加工を外
側面のみの一部に施したので、光沢のない部分と光沢の
あるベゼル部１ｄ等の部分とができ、ツートン仕上とな
るため、より一層１時計としての高級化が図れ、デザイ
ン的に好ましものとなる。Therefore, according to such a wristwatch case 1, a copper plating layer 9 is formed on the surface of a molded product 7 made of synthetic resin, and a part of this copper plating layer 9 is formed with fine irregularities by honing. A nickel plating layer 10 is formed on the surface of the copper plating layer 9, and a decorative plating layer 11 of a chromium plating layer or a gold plating layer is formed on the surface of the nickel plating layer 10, so that the honed portions are formed on the metal case. The surface finish is the same as that obtained by honing the material, giving it an extremely metallic feel. Therefore,
Even if the watch bands 5, 5 with hairline processing are attached to the watch case 1, the watch case 1 and the watch bands 5, 5 fit together without any discomfort, and a high-quality product can be obtained. In addition, the honed area becomes matte with no gloss, so dents and scratches are not noticeable.In addition, the honing process is applied to the copper plating layer 9 in the pre-nickel plating process. Therefore, the copper plating layer 9 after honing can be protected by the nickel plating layer 10. Therefore, corrosion of the copper plating layer 9 in which fine irregularities 9a are formed by honing can be prevented, and corrosion resistance and durability can be ensured. Furthermore, since the honing process is carried out partially, among the masks 13.13 provided at the bezel part 1d and the protruding part 1e, etc., which are not honed, the bezel part 1a located on the front side of the wristwatch is particularly The edge of the mask 130 to cover is located at the vertical straight part S formed in the molded product 7, so the boundary between the honed part and the other part is not noticeable and the appearance is improved. You can make it better. In addition, this watch case l has been honed only on a part of the outer surface, so there are parts that are not shiny and parts such as the bezel part 1d that are shiny, resulting in a two-tone finish, making it even more of a watch. This makes it more sophisticated and desirable in terms of design.
次に、第５図および第６図を参照して、第２実施例を説
明する。この場合、上述した第１実施例と同一部分には
同一符号を付し、その説明は省略する。Next, a second embodiment will be described with reference to FIGS. 5 and 6. In this case, the same parts as those in the first embodiment described above are given the same reference numerals, and the explanation thereof will be omitted.
この第２実施例の腕時計ケースｌは合成樹脂製の成形品
７の表面に上述と同じ下地処理を施したうエニッケルメ
ッキを施し、このニッケルメッキの表面に銅メッキ層９
を形成した後、この銅メッキ層９の一部にヘアーライン
加工を施し、このヘアーライン加工が施された銅メッキ
層９の全表面に上述した第１実施例と同じニッケルメッ
キ層１０および装飾メッキ層１１を積層形成した構成と
なっている。すなわち、ヘアーライン加工は銅メッキ層
９の表面に縦縞の線模様の微細な凹凸９ｂ・・・を形成
する加工であり、上述した実施例と同様に、成形品７の
ベゼル部１ｄおよび下部の突出部１ｅと対応する部分に
それぞれマスク１３゜１３を設け、このマスク１３．１
３で覆われていない銅メッキ層９の外側面に施される。The watch case l of this second embodiment is made by applying nickel plating to the surface of a molded product 7 made of synthetic resin with the same surface treatment as described above, and on the surface of this nickel plating, a copper plating layer 9 is applied.
After forming, a part of this copper plating layer 9 is subjected to hairline processing, and the same nickel plating layer 10 and decorative plating layer as in the first embodiment described above are applied to the entire surface of the copper plating layer 9 that has been subjected to this hairline processing. 11 are laminated. That is, the hairline process is a process of forming fine unevenness 9b in a vertical striped pattern on the surface of the copper plating layer 9, and similarly to the above-mentioned embodiment, the bezel part 1d and the protrusion of the lower part of the molded product 7 are A mask 13°13 is provided in each portion corresponding to the portion 1e, and this mask 13.1
3 is applied to the outer surface of the copper plating layer 9 that is not covered with 3.
この場合、線模様の微細な凹凸９ｂ・・・の向きは腕時
計ケースｌの側面では縦方向に設けられ、バンド取付部
１ｆ、ｌｆにおいては第５図に示すように時計バンド５
，５のへアーライン加工と同じ前後方向に設けられてい
る。In this case, the line-pattern fine unevenness 9b... is provided in the vertical direction on the side surface of the watch case l, and the watch band 5 in the band attachment parts 1f, lf is arranged vertically on the side surface of the watch case l, as shown in FIG.
, 5 is provided in the same front-back direction as the hairline processing.
したがって、このような腕時計ケースｌにおいても、前
述した第１実施例と同様の作用効果があるほか、特にヘ
アーライン加工を施したので、その微細な凹凸９ｂ・・
・による線模様と時計バンド５．５のヘアーライン加工
の線模様とが違和感なくマツチし、上述した実施例のも
のよりも、より一層、高級感の高いものが得られる。Therefore, such a wristwatch case l also has the same effect as the first embodiment described above, and has been especially hairline processed, so that the fine irregularities 9b...
The line pattern of * and the line pattern of the hairline processing of the watch band 5.5 match without any discomfort, and a product with a higher sense of luxury than the above-mentioned embodiments can be obtained.
なお、この発明は上述したような腕時計ケースｌに限ら
ず、時計バンド５，５等の時計用外装部品に適用できる
ほか、他の電子機器等にも広く適用することができる。Note that the present invention is not limited to the wristwatch case 1 as described above, but can be applied to exterior parts for a watch such as the watch bands 5, 5, and can also be widely applied to other electronic devices.
［発明の効果］
以上詳細に説明したように、この発明によれば１合成樹
脂製の成形品に銅メッキ層を形成し、この銅メッキ層の
表面に微細な凹凸を形成し、この凹凸が形成された銅メ
ッキ層の表面にニッケルメッキ層を介して装飾メッキ層
を積層形成するようにしたので、ヘアーライン等の金属
特有の表面処理による外観を得ることができ、デザイン
的に優れ、金属感を充分にだすことのできる。[Effects of the Invention] As explained in detail above, according to the present invention, a copper plating layer is formed on a molded product made of synthetic resin, fine irregularities are formed on the surface of the copper plating layer, and the irregularities are Since a decorative plating layer is laminated on the surface of the formed copper plating layer via a nickel plating layer, it is possible to obtain an appearance due to surface treatment unique to metals such as hair lines, which is excellent in terms of design and has a metallic feel. be able to produce a sufficient amount of
第１図〜第４図はこの発明の第１実施例を示し、第１図
は腕時計の外観図、第２図（Ａ）はその要部拡大断面図
、第２図（Ｂ）はその矢印Ｘで示す部分の拡大図、第２
図（Ｃ）は矢印Ｙで示す部分の拡大図、第３図は金属メ
ッキを施すための工程図、第４図（Ａ）〜（Ｅ）はその
メッキ工程毎の要部拡大断面図、第５図および第６図は
第２実施例を示し、第５図はその腕時計の外観図、第６
図は金属メッキを施すための工程図である。
１・・・・・・腕時計ケース、７・・・・・・成形品、
８・・・・・・金属メッキ、９・・・・・・銅メッキ層
、９ａ、９ｂ・・・・・・微細な凹凸、１０・・・・・
・ニッケルメッキ層、１１・・・・・・装飾メッキ層。
特
許
出
願
人
カシオ計算機株式会社
Ｃ）
第
図
第
図
第
図1 to 4 show a first embodiment of the present invention, FIG. 1 is an external view of the wristwatch, FIG. 2(A) is an enlarged cross-sectional view of its main parts, and FIG. 2(B) is an arrow thereof. Enlarged view of the part indicated by X, 2nd
Figure (C) is an enlarged view of the part indicated by arrow Y, Figure 3 is a process diagram for applying metal plating, Figures 4 (A) to (E) are enlarged cross-sectional views of important parts for each plating process, and Figure 3 is a process diagram for applying metal plating. 5 and 6 show the second embodiment, FIG. 5 is an external view of the wristwatch, and FIG. 6 is an external view of the wristwatch.
The figure is a process diagram for applying metal plating. 1... Watch case, 7... Molded product,
8... Metal plating, 9... Copper plating layer, 9a, 9b... Fine unevenness, 10...
・Nickel plating layer, 11... Decorative plating layer. Patent applicant Casio Computer Co., Ltd. C) Figure Figure Figure Figure
Claims (3)
が形成された銅メッキ層と、 この銅メッキ層の表面に形成されたニッケルメッキ層と
、 このニッケルメッキ層の表面に形成された装飾メッキ層
と、 からなるメッキ付き合成樹脂部材。(1) A molded product made of synthetic resin, a copper plating layer coated with the molded product made of synthetic resin and having fine irregularities formed on its surface, and a nickel plating layer formed on the surface of this copper plating layer. , a decorative plating layer formed on the surface of the nickel plating layer, and a plated synthetic resin member.
ことを特徴とする請求項第１項に記載のメッキ付き合成
樹脂部材。(2) The plated synthetic resin member according to claim 1, wherein the synthetic resin molded product is an exterior part for a watch.
特徴とする請求項第２項に記載のメッキ付き合成樹脂部
材。 この銅メッキの表面に微細な凹凸を形成する工程と、 この凹凸が形成された銅メッキの表面にニッケルメッキ
を施す工程と、 このニッケルメッキの表面に装飾メッキを施す工程と、 からなるメッキ付き合成樹脂部材のメッキ方法。(3) The plated synthetic resin member according to claim 2, wherein the watch exterior part is a watch case. A process of forming fine irregularities on the surface of this copper plating, a process of applying nickel plating to the surface of the copper plating on which the irregularities are formed, and a process of applying decorative plating to the surface of this nickel plating. Method of plating synthetic resin parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63266120A JPH02115390A (en) | 1988-10-24 | 1988-10-24 | Plated synthetic resin member and its plating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63266120A JPH02115390A (en) | 1988-10-24 | 1988-10-24 | Plated synthetic resin member and its plating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02115390A true JPH02115390A (en) | 1990-04-27 |
Family
ID=17426600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63266120A Pending JPH02115390A (en) | 1988-10-24 | 1988-10-24 | Plated synthetic resin member and its plating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02115390A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10324978A (en) * | 1997-04-30 | 1998-12-08 | Masco Corp | Coated article |
| JPH11100682A (en) * | 1997-04-30 | 1999-04-13 | Masco Corp | Article having coating |
| JP2001305244A (en) * | 2000-04-20 | 2001-10-31 | Maruman Corporation:Kk | Case for radio wave wristwatch, manufacturing method for the case, and radio wave wristwatch using the case |
| JP2002155392A (en) * | 2000-11-16 | 2002-05-31 | Nec Corp | Portable telephone casing |
| US7396595B2 (en) | 2001-09-19 | 2008-07-08 | Citizen Holdings Co., Ltd. | Soft metal and method for preparation thereof, and exterior part of watch and method for preparation thereof |
| JP2008184669A (en) * | 2007-01-31 | 2008-08-14 | Pentel Corp | Clip, and manufacturing method therefor |
| GB2475414A (en) * | 2009-11-12 | 2011-05-18 | Gadoo Ltd | Producing gold electroplated jewellery |
| JP5825733B1 (en) * | 2015-07-10 | 2015-12-02 | 名古屋メッキ工業株式会社 | Gold plated ornaments, mock swords and their gold plating methods |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59197884A (en) * | 1983-04-26 | 1984-11-09 | Seiko Instr & Electronics Ltd | Plastic wrist watch case |
-
1988
- 1988-10-24 JP JP63266120A patent/JPH02115390A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59197884A (en) * | 1983-04-26 | 1984-11-09 | Seiko Instr & Electronics Ltd | Plastic wrist watch case |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10324978A (en) * | 1997-04-30 | 1998-12-08 | Masco Corp | Coated article |
| JPH11100682A (en) * | 1997-04-30 | 1999-04-13 | Masco Corp | Article having coating |
| JP2001305244A (en) * | 2000-04-20 | 2001-10-31 | Maruman Corporation:Kk | Case for radio wave wristwatch, manufacturing method for the case, and radio wave wristwatch using the case |
| WO2001082005A1 (en) * | 2000-04-20 | 2001-11-01 | Trigger Co., Ltd. | Radiowave wristwatch case |
| JP2002155392A (en) * | 2000-11-16 | 2002-05-31 | Nec Corp | Portable telephone casing |
| US6996425B2 (en) | 2000-11-16 | 2006-02-07 | Nec Corporation | Cellular phone housing |
| US7396595B2 (en) | 2001-09-19 | 2008-07-08 | Citizen Holdings Co., Ltd. | Soft metal and method for preparation thereof, and exterior part of watch and method for preparation thereof |
| JP2008184669A (en) * | 2007-01-31 | 2008-08-14 | Pentel Corp | Clip, and manufacturing method therefor |
| GB2475414A (en) * | 2009-11-12 | 2011-05-18 | Gadoo Ltd | Producing gold electroplated jewellery |
| JP5825733B1 (en) * | 2015-07-10 | 2015-12-02 | 名古屋メッキ工業株式会社 | Gold plated ornaments, mock swords and their gold plating methods |
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